Inspector F/A Tank Calculator is a free Android application developed by Deniss Tkatsjov that helps you calculate the amount of product loaded into tank cars of different types. With this app, you can easily calculate the volume of product in a rail tank of any type ranging from 14 to 106. The app provides a calibration table for all types of tanks, which will allow you to select the type of car and the loading height of the product in millimeters.

To calculate the weight of the product, the app requires you to specify the density in g/cm³ at 15°C (not at 20°C), and the temperature of the fuel if required. The app provides a temperature correction to ensure the accuracy of the calculation. It's essential to note that the density of the product or weight must be specified at fifteen degrees Celsius, which is an international standard method of calculation.

Overall, Inspector F/A Tank Calculator is a useful application for anyone who needs to calculate the volume of product loaded into tank cars accurately. The only downside is that the app does not provide a calculation for the standard density at 20 degrees for Russian passports quality.